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SAE AIR 1277 : 2005

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

COOLING OF MILITARY AVIONIC EQUIPMENT
Available format(s)

Hardcopy , PDF

Withdrawn date

01-16-2018

Language(s)

English

Published date

01-01-2005

1 SCOPE
   1.1 Purpose
   1.2 Field of Application
2 REFERENCES
   2.1 Applicable Documents
       2.1.1 SAE Publications
       2.1.2 U.S. Government Publications
       2.1.3 U.S. Army Publications
       2.1.4 NATO Publications
   2.2 Related Publications
   2.3 Definitions
   2.4 Abbreviations
3 INTRODUCTION
4 DESIGN REQUIREMENTS
   4.1 General Requirements
       4.1.1 Contract Specification
       4.1.2 Military or Government Specifications
       4.1.3 System Design Process
   4.2 Avionic Thermal Design Considerations
       4.2.1 Reliability
       4.2.2 Temperature Effect an Avionic Performance
       4.2.3 Environmental Requirements
       4.2.4 Avionic Thermal Control
       4.2.5 Avionic Integrity Requirements
   4.3 Airframe Systems
       4.3.1 Thermal Control Requirements
       4.3.2 Trade-off Studies
       4.3.3 Environmental Requirements
       4.3.4 Moisture Condensation
5 INTERFACE BETWEEN AVIONICS, ECS, AND AIRCRAFT
   5.1 Interface Cooling Requirements
   5.2 Life Cycle Cost
   5.3 Ram and Compartment Cooling Air
   5.4 Air and Liquid Cooled Systems
       5.4.1 Forced Air Cooling
       5.4.2 Liquid Cooling Systems
   5.5 Fuel Heat Sink
   5.6 Installation
   5.7 Weight
   5.8 Commercial-off-the-shelf (COTS) Avionics
6 AVIONIC THERMAL CONTROL HARDWARE DESIGN/SELECTION
   6.1 Line-Replaceable-Unit (Weapon Replaceable Assembly)
       Thermal Design
       6.1.1 Passively Cooled (Natural Convection/Radiation) LRUs
       6.1.2 Actively Cooled (Forced Convection) LRUs
       6.1.3 Cold Wall-Cooled LRU Thermal Design
   6.2 Cold Plate Design
       6.2.1 Basic Cold Wall Configurations
   6.3 Heat Exchanger Design
       6.3.1 Plate Fin Heat Exchangers
       6.3.2 Weight and Other Considerations
   6.4 Specialized Thermal Control Technologies
       6.4.1 Thermoelectric Coolers
       6.4.2 Heat Pipes
       6.4.3 Immersion Cooling
       6.4.4 Expendable Liquid Coolants
       6.4.5 Liquid Coolant within Board
   6.5 Thermal Analysis Methods
       6.5.1 Thermal Modeling Techniques
       6.5.2 Finite-Difference Modeling Techniques
       6.5.3 Finite-Element Modeling Techniques
       6.5.4 Computational-Fluid-Dynamics (CFD) Simulation
       6.5.5 ECS Simulation
7 AIRFRAME THERMAL CONTROL HARDWARE
   7.1 Heat Sink Hardware
       7.1.1 Ram Air
       7.1.2 Fuel
       7.1.3 Expendable Liquid Heat Sinks
       7.1.4 Thermal Storage
   7.2 ECS Hardware
       7.2.1 Transport Loops
       7.2.2 Fluid Refrigeration
   7.3 Thermal Analysis Methods
8 THERMAL TESTING
   8.1 Thermal Testing of Avionics
   8.2 Thermal Testing of Cooling Systems and ECS
9 AVIONIC THERMAL MANAGEMENT CASE STUDIES
   9.1 FLIR Turret Thermal Control
       9.1.1 Design for Operation at High Altitude
       9.1.2 Design Verification Testing
       9.1.3 Problems Associated With Forced Convection Cooled
             Avionics
   9.2 Liquid-Cooled, Phased Array Radar System
       9.2.1 Critical Design Issues
       9.2.2 Temperature Gradient from Module-to-Module Across
             the Array
       9.2.3 Absolute Temperature of Module Components
       9.2.4 Temperature Cycling
       9.2.5 Module/Gold Plate Thermal Resistance
10 NOTES

Gives information on the thermal design requirements of airborne avionic systems used in military airborne applications.

Committee
AC-9
DocumentType
Standard
Pages
91
PublisherName
SAE International
Status
Withdrawn
Supersedes

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SAE AIR 1823 : 1996 ENGINEERING ANALYSIS SYSTEM (EASY) COMPUTER PROGRAM FOR DYNAMIC ANALYSIS OF AIRCRAFT ECS
STANAG 2895 : 1990 EXTREME CLIMATIC CONDITIONS AND DERIVED CONDITIONS FOR USE IN DEFINING DESIGN/TEST CRITERIA FOR NATO FORCES MATERIAL
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MIL-HDBK-310 Base Document:1997 DEPARTMENT OF DEFENSE HANDBOOK - GLOBAL CLIMATIC DATA FOR DEVELOPING MILITARY PRODUCTS
MIL-T-18606 Base Document:1955 TEST PROCEDURES FOR AIRCRAFT ENVIRONMENT SYSTEMS
SAE ARP 217 D : 2016 TESTING OF AIRPLANE INSTALLED ENVIRONMENTAL CONTROL SYSTEMS (ECS)

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